hypermile
v.— «Kroushl’s Prius finally rolled to a stop at 6:55 p.m. yesterday, five minutes short of 48 hours on the road. He drove more than 15 hours of the trip and emerged from the car drenched in sweat—he was trying to boost fuel economy by not running the air conditioning. But why spend a weekend driving nowhere? The men each have their reasons, but it all boils down to two things: competition and hypermile super stardom.» —“Hybrid drivers complete run for mileage mark” by Jacqueline Shoyeb, Moustafa Ayad Pittsburgh Post-Gazette (Pennsylvania) Aug. 8, 2005. (source: Double-Tongued Dictionary)